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Question
The human body has an average temperature of 98°F. Assume that the vapour pressure of the blood in the veins behaves like that of pure water. Find the minimum atmospheric pressure which is necessary to prevent the blood from boiling. Use figure for the vapour pressures.
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Solution
Here ,
`"T" = 98^circ "F"`
When we convert the temperature to °C , we get
`5/9("F" - 32)`
= `5/9(98 - 32)`
= `36.7^circ C`
We drop perpendicular corresponding to a temperature of 36.70C on Y-axis from the curve of pure water. This gives the boiling point of blood 50 mm of Hg.
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